摘要:
A container service is capable of hosting large numbers of middleware components for multiple tenants. A central container manager controls a plurality of compute nodes. The central container manager receives middleware components from external devices or services and assigns the components to containers on one or more designated compute nodes. Each compute node has a container management agent and one or more containers. The container management agents activate and manage the appropriate number of containers to run the assigned middleware components. The container management agent assigns each container on its compute node a limited set of privileges to control access to shared resources. The central container manager and each node's container management agent monitor container load levels and dynamically adjust the placement of the middleware components to maintain balanced operation. The compute nodes are grouped into clusters based upon the type of middleware components hosted on each compute node.
摘要:
A container service is capable of hosting large numbers of middleware components for multiple tenants. A central container manager controls a plurality of compute nodes. The central container manager receives middleware components from external devices or services and assigns the components to containers on one or more designated compute nodes. Each compute node has a container management agent and one or more containers. The container management agents activate and manage the appropriate number of containers to run the assigned middleware components. The container management agent assigns each container on its compute node a limited set of privileges to control access to shared resources. The central container manager and each node's container management agent monitor container load levels and dynamically adjust the placement of the middleware components to maintain balanced operation. The compute nodes are grouped into clusters based upon the type of middleware components hosted on each compute node.
摘要:
A computer user may use a computing environment comprising a set of computers that respectively feature a web browser having a browser cache containing many types of data objects, including application resources and user-generated data files. However, the contents of a browser cache significantly contribute to the computing environment of a computer, and the computing environments presented by each computer may diverge, providing an inconsistent computing environment. Instead, the contents of browser caches of the computers comprising the computing environment may be synchronized across computers. Additionally, the browser cache may be synchronized with the other data objects of a computing environment (such as relevant portions of the filesystem); the synchronizing may be implemented as an out-of-browser process executing independently of the applications, and even when the browser is not executing; and the synchronization may be exposed through a programmatic access with which web applications may interact.
摘要:
Data sets of various types may be accessible through a host according to a protocol, such as a RESTful HTTP interface. Various domains may involve domain-specific processes to be executed as pre-triggers or post-triggers of various protocol requests (e.g., an HTTP GET request specifying a Read operation on an access-restricted data set may involve an authorization operations set that verifies the access privileges of the requester.) A host of the data set may be configured to receive a resource script expressing the operations set in a script language, to store the resource script, and to associated it with at least one data set and at least one verb of the protocol. Upon later receiving a protocol request specifying the verb and the resource, the host may then execute the resource script (as a pre-trigger and/or as a post-trigger) in accordance with the business logic of the domain.
摘要:
Workflow debugging. A debug engine integrated with an external development tool debugging framework sets breakpoints directly on workflow activities and stops execution of the workflow at each of the breakpoints. The state of the workflow activity at the breakpoint is displayed. The debug engine extracts source code of the workflow for debugging at the source code level.
摘要:
Building a componentized workflow model. Each step of the workflow is modeled as an activity that has metadata to describe design time aspects, compile time aspects, and runtime aspects of the workflow step. A user selects and arranges the activities to create the workflow via user interfaces or application programming interfaces. The metadata associated with each of the activities in the workflow is collected to create a persistent representation of the workflow. Users extend the workflow model by authoring custom activities. The workflow may be compiled and executed.
摘要:
A distributed component model for creating a scalable and available distributed application is disclosed. The distributed component model provides for an application schema to be declaratively defined to include a module having a component. The schema includes a corresponding definition construct in a technology agnostic manner. The corresponding definition construct is declaratively defined to include metadata to control scaling and availability.
摘要:
A computer user may use a computing environment comprising a set of computers that respectively feature a web browser having a browser cache containing many types of data objects, including application resources and user-generated data files. However, the contents of a browser cache significantly contribute to the computing environment of a computer, and the computing environments presented by each computer may diverge, providing an inconsistent computing environment. Instead, the contents of browser caches of the computers comprising the computing environment may be synchronized across computers. Additionally, the browser cache may be synchronized with the other data objects of a computing environment (such as relevant portions of the filesystem); the synchronizing may be implemented as an out-of-browser process executing independently of the applications, and even when the browser is not executing; and the synchronization may be exposed through a programmatic access with which web applications may interact.
摘要:
Data sets of various types may be accessible through a host according to a protocol, such as a RESTful HTTP interface. Various domains may involve domain-specific processes to be executed as pre-triggers or post-triggers of various protocol requests (e.g., an HTTP GET request specifying a Read operation on an access-restricted data set may involve an authorization operations set that verifies the access privileges of the requester.) A host of the data set may be configured to receive a resource script expressing the operations set in a script language, to store the resource script, and to associated it with at least one data set and at least one verb of the protocol. Upon later receiving a protocol request specifying the verb and the resource, the host may then execute the resource script (as a pre-trigger and/or as a post-trigger) in accordance with the business logic of the domain.
摘要:
The present invention enables a user to build user-interfaces and applications based on a policy that contains metadata. The user can build an application through the user-interface, in which the user-interface and the generated computer-executable instructions are consistent with the policy. A user-interface has a toolbox that indicates the discovered components and a design surface that displays applicable stages. The policy determines the stages, where each stage provides a grouping of components having related tasks. The user selects components from the toolbox so that the selected components are associated with the selected stages on the design surface. After the user has completed building an application, a representation of the application may be compiled in order to generate a set of computer-executable instructions. Moreover, the compiler is coupled to the policy so that the set of computer-executable instructions is consistent with the policy.